A stacked horizontal bar chart shows sales by product category for five stores, with tooltips displaying precise values on hover. The visualization uses D3 v7, loading data from a CSV file and rendering with SVG. It employs `d3.stack()` for data stacking, `d3.scaleBand()` for the y-axis, and `d3.scaleLinear()` for the x-axis, with `d3.scaleOrdinal()` for category colors.